import assert from "node:assert/strict";
import crypto from "node:crypto";
import fs from "node:fs";
import path from "node:path";
import { fileURLToPath } from "node:url";

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "../..");
const read = (relative) => fs.readFileSync(path.join(root, relative), "utf8");
const json = (relative) => JSON.parse(read(relative));
const sha256 = (bytes) => crypto.createHash("sha256").update(bytes).digest("hex");
const plan = json("docs/BLENDER_WEB_PARITY_TASK_PLAN_V2.json");
const index = json("tests/golden/WBV2/task-index.json");
const catalogBytes = fs.readFileSync(path.join(root, index.catalog.path));

assert.equal(index.schemaVersion, 1);
assert.equal(index.operation, "BLENDER_WEB_CAPABILITY_TASK_INDEX");
assert.equal(sha256(read(index.source.path)), index.source.sha256);
assert.equal(sha256(catalogBytes), index.catalog.sha256);
assert.equal(index.taskCount, plan.tasks.length);
const ready = plan.tasks.filter((task) => task.ready === true);
assert.equal(ready.length, 1);
assert.equal(index.activeTask, ready[0].id);
const lines = catalogBytes.toString("utf8").trimEnd().split("\n").filter(Boolean).map((line) => JSON.parse(line));
assert.equal(lines.length, plan.tasks.length);
assert.equal(lines.filter((task) => task.state === "active").length, 1);
assert.equal(lines.find((task) => task.state === "active")?.id, index.activeTask);
for (const task of plan.tasks.filter((candidate) => candidate.ready || candidate.status === "done")) {
  assert.ok(index.entries[task.id], `${task.id} must have an index entry`);
  assert.ok(fs.existsSync(path.join(root, task.card)), `${task.id} card must exist before activation`);
}
process.stdout.write(`v2-task-index-ok tasks=${index.taskCount} active=${index.activeTask} catalog=${index.catalog.path}\n`);